Broad band amplifiers,申请号GB19410011699-传众专利搜索

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发明名称	Broad band amplifiers
摘要
申请公布号	GB549272(A)	申请公布日期	1942.11.13
申请号	GB19410011699	申请日期	1941.09.12
申请人	STANDARD TELEPHONES AND CABLES LIMITED	发明人
分类号	H03F1/50;H03F3/36	主分类号	H03F1/50
代理机构		代理人
主权项
地址

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